Mirador Viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503885_00301_u001/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f7e47976-10d2-41e0-add7-0bafbde93fac",
      "cw-86f2eb8a-785c-4a76-bab2-d0c608a5e88b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-aba9d19d-35ba-4a2e-8b86-1cf157e0b752",
    "manifestId": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503885_00301_u001/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": true,
    "sideBarPanel": "calendar",
    "thumbnailNavigationId": "cw-86f2eb8a-785c-4a76-bab2-d0c608a5e88b",
    "thumbnailNavigationPosition": "far-right",
    "allowClose": false,
    "calendarNavigation": {
      "issueId": "bsb10503885_00301_u001",
      "navDate": "1867-03-26",
      "multId": "bsbmult00000663",
      "lastSearchUrl": null
    },
    "canvasIndex": 0,
    "dfgViewerUrl": null,
    "loadedManifest": "https://api.digitale-sammlungen.de/iiif/presentation/v2/bsb10503885_00301_u001/manifest",
    "shiftBookView": false,
    "switchCanvasOnSearch": false,
    "view": "single"
  }
}